Gezzz, it took me FOREVER to get this to the point where I could publish it on the BYC. Don't ask, it was probably not the best way, but here it is. I looked up a scientific paper on humidity conditions under a broody hen. Well of course it went on and on in scientific mumbo jumbo, but at the end of the paper in the dicriptions and tables I found this. Enjoy Oh and I put it in my BYC pages under "humidity" so one does not have to go looking for this thread.